276 BULLETIISr 19, UNITED STATES NATIONAL MUSEUM. 



t*Perodipus simulans simulans (Merriam). 



1904. Perodipus streatori simulans Merriam, Proc. Biol. Soc. 



Washington, vol. 17, p. 144. July 14, 1904. 

 1907. Perodipus simulans Merriam, Proc. Biol. Soc. Washington, 



vol. 20, p. 79. July 22, 1907. 

 Type Locality. — Dulzura, San Diego County, California. 



t*Perodipus simulans peninsularis Merriam. 



1907. Perodipus simulans peninsularis Merriam, Proc. Biol. 



Soc. Washington, vol. 20, p. 79. July 22, 1907. 

 Type Locality. — Santo Domingo, Lower California, Mexico, 



t*Perodipus Stephens! Merriam. 



1907. Perodipus stepliensils/LEiiiLiAM, Proc. Biol. Soc. Washington, 



vol. 20, p. 78. July 22, 1907. 

 Type Locality. — San Jacinto Valley, Riverside County, Cali- 

 fornia. 



t*Perodipus streatori Merriam. 



1894. Perodipus streatori Merriam, Proc. Biol. Soc. Washington, 



vol. 9, p. 113. June 21, 1894. 

 Type Locality. — Carbondale, Mariposa County, California. 



t*Perodipus venustus Merriam. 



1904. Perodipus venustus Merriam, Proc. Biol. Soc. Washington, 



vol. 17, p. 142. July 14, 1904, 

 Type Locality. — Santa Cruz, Santa Cruz County, California. 



Genus DIPODOMYS Gray. 



1841. Dipodomys Gray, Ann. and Mag. Nat. Hist., vol. 7, p. 521, 

 August, 1841. Type, Dipodomys phiUipsii Guay . 



t*Dipodomys ambiguus ^lerriam. 



1890. Dipodomys amUguus Merriam, North Amer. Fauna 



No. 4, p. 42. October 8, 1890. 

 Type Locality. — El Paso, El Paso County, Texas. 



Regarded by Merriam (Science, n. s., vol. 7, p. 31, January 7, 1898) as a form 

 of D. merriami. 



t*Dipodomys califomicus califomicus Merriam. 



1890. Dipodomys califomicus Merriam, North Amer. Fauna, 



No. 4, p. 49. October 8, 1890. 

 Type Locality. — Ukiah, Mendocino County, California. 



*Dipodomys califomicus pallidulus Bangs. 



1899. Dipodomys califomicus pallidulus Bangs, Proc. New 



England Zool. Club, vol. 1, p. 65. July 31, 1899. 

 Type Locality. — Sites, Colusa County, California. 



